JPH0237418B2 - - Google Patents
Info
- Publication number
- JPH0237418B2 JPH0237418B2 JP57136162A JP13616282A JPH0237418B2 JP H0237418 B2 JPH0237418 B2 JP H0237418B2 JP 57136162 A JP57136162 A JP 57136162A JP 13616282 A JP13616282 A JP 13616282A JP H0237418 B2 JPH0237418 B2 JP H0237418B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- wear resistance
- wear
- brass
- strength brass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- 229910001369 Brass Inorganic materials 0.000 claims description 13
- 239000010951 brass Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 description 6
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
- Mechanical Operated Clutches (AREA)
Description
この発明は、黄銅合金特に耐摩耗性が必要とさ
れる用途に有用な黄銅合金に関するものである。
従来、高速高荷重の下で使用される耐摩耗性黄
銅合金としては、高力黄銅にSiを添加して高硬度
のMn5Si3等の化合物を析出させたものが使用さ
れている。しかしながら高速化、潤滑油の低粘度
化等により使用条件が一段と荷酷な摺動条件下で
は耐摩耗性等実用面で充分とはいえず更に高性能
なものが望まれている。
本発明は上記の点に鑑みて提案されたもので、
高力黄銅に比べて優れた耐摩耗性を有する銅合金
を提供することを目的とし、重量％でCu55〜70
％、Al1.0〜6.0％、Fe0.1〜4.0％、Ni0.5〜5.0％、
Zr0.1〜3.0％および残部はZnからなること、およ
びこの合金にSi0.1〜2.0％添加したことを特徴と
する。
上記各構成元素を選定し、また上記割合に限定
した理由は以下の通りである。
即ち、Alはβ相形成促進元素であり、合金の
機械的強度を高めるが、添加量が6.0％以上では
鋳造組織の粗大化傾向があり、また酸化スラグを
生成しやすく、靭性が低下する。一方添加量が
1.0％以下では強靭効果が認められない。
Feは金属間化合物を強化し、また鋳造組織を
微細化する効果がある。ただし、添加量が4.0％
を上回ると金属間化合物が粗大化して機械加工性
を損ない、また耐摩耗性でバラツキが大きくな
る。一方添加量が0.1％を下回ると上記効果は認
められない。
Niはα相形成促進元素でマトリツクスの靭性
を向上させ、またFeとの共存で金属間化合物を、
均一に分布させる。この点を勘案した場合Niの
添加量は0.5〜5.0％が好適範囲である。
Zrは本合金特有の金属間化合物を析出させる
には必須の元素で、析出物の均一分布および析出
物の硬度向上に寄与し、これが耐摩耗性に著しい
効果を示し、3.0％以上では析出物が粗大化し、
偏析が生じ、0.1％以下では上記効果が認められ
ない。
またSiもZrと同様に金属間化合物を強化し0.1
〜２％が好的範囲である。２％以上では析出物の
偏析あるいは靭性が低下し0.1％以下ではその効
果が少ない。以下本発明の実施例について説明す
る。
実施例 １
この発明合金の各種組成のものと、公知の高力
黄銅を溶解鋳造し熱間鍛造したものの、特性値を
比較したところ第１表の結果が得られた。この結
果から本発明合金が従来の高力黄銅に比較して引
張り試験、硬度ともに従来品より優れており、靭
性に優れているといえる。
TECHNICAL FIELD This invention relates to brass alloys, particularly brass alloys useful in applications requiring wear resistance. Conventionally, wear-resistant brass alloys used under high-speed and high-load conditions have been made by adding Si to high-strength brass to precipitate highly hard compounds such as Mn 5 Si 3 . However, under sliding conditions, which are becoming more demanding due to higher speeds and lower viscosity of lubricating oil, the wear resistance is not sufficient for practical purposes, and even higher performance is desired. The present invention was proposed in view of the above points, and
The purpose is to provide a copper alloy with superior wear resistance compared to high-strength brass, with Cu55~70 in weight%.
%, Al1.0~6.0%, Fe0.1~4.0%, Ni0.5~5.0%,
The alloy is characterized in that it consists of 0.1 to 3.0% Zr and the balance Zn, and that 0.1 to 2.0% Si is added to this alloy. The reasons for selecting each of the above constituent elements and limiting them to the above proportions are as follows. That is, Al is an element that promotes β phase formation and increases the mechanical strength of the alloy, but if the amount added is 6.0% or more, the cast structure tends to become coarser, and oxidized slag is likely to be generated, resulting in a decrease in toughness. On the other hand, the amount added
No toughening effect is observed below 1.0%. Fe has the effect of strengthening intermetallic compounds and refining the casting structure. However, the amount added is 4.0%
If it exceeds this, the intermetallic compounds will become coarse, impairing machinability, and variations in wear resistance will increase. On the other hand, if the amount added is less than 0.1%, the above effects are not observed. Ni is an element that promotes α phase formation and improves the toughness of the matrix.
Evenly distributed. Taking this point into consideration, the preferable range for the amount of Ni added is 0.5 to 5.0%. Zr is an essential element for precipitating intermetallic compounds unique to this alloy, contributing to the uniform distribution of precipitates and improving the hardness of the precipitates, which has a significant effect on wear resistance. becomes coarser,
Segregation occurs and the above effects are not observed at 0.1% or less. Also, like Zr, Si also strengthens intermetallic compounds and
~2% is a preferred range. If it is more than 2%, the segregation of precipitates or toughness will be reduced, and if it is less than 0.1%, the effect will be small. Examples of the present invention will be described below. Example 1 The characteristic values of alloys of various compositions of this invention and those made of known high-strength brass melted and cast and hot forged were compared, and the results shown in Table 1 were obtained. From these results, it can be said that the alloy of the present invention is superior to conventional high-strength brass in both tensile test and hardness, and has excellent toughness.
【表】
実施例 ２
この発明合金（No.１、３およびNo.４、６）と市
販の高力黄銅No.１（従来の高力黄銅ではNo.１のSi
−Mn系のものが耐摩耗性が優れている）とを用
いて自動車用変速機のシンクロナイザーリングを
作成し、それのテーパ面と、鋼材（JIS記号
SCM420H）により作成したテーパコーンとの摺
動による摩耗試験の結果を示す。
試験条件は、リング押付荷重60Kgｆ、摺動速度
4.7ｍ／sec、押付回数2000回とし、潤滑油は
ATFデクストロンとSAE10W−30の２種類とす
る。なお摩耗変位量は、テーパコーン軸方向に対
する変位量である。[Table] Example 2 This invention alloy (No. 1, 3 and No. 4, 6) and commercially available high strength brass No. 1 (No. 1 in conventional high strength brass)
- Mn-based materials have excellent wear resistance) to create a synchronizer ring for an automobile transmission, and its tapered surface and steel material (JIS symbol
The results of a wear test by sliding with a taper cone made using SCM420H) are shown. The test conditions were a ring pressing load of 60 kgf and a sliding speed.
4.7m/sec, 2000 times of pressing, and lubricating oil.
There are two types: ATF Dextron and SAE10W-30. Note that the amount of wear displacement is the amount of displacement with respect to the axial direction of the taper cone.
【表】
以上の通り本発明合金は、従来の高力黄銅合金
よりも機械的性質の優れた耐摩耗性黄銅合金で、
特に高速、高荷重における耐摩耗性がすぐれてお
り、苛酷な使用条件に充分に耐えうる合金であ
る。[Table] As described above, the alloy of the present invention is a wear-resistant brass alloy with superior mechanical properties than conventional high-strength brass alloys.
This alloy has particularly excellent wear resistance at high speeds and high loads, and can withstand harsh usage conditions.
Claims (1)
Fe0.1〜4.0％、Ni0.5〜5.0％、Zr0.1〜3.0％および
残部はZnからなることを特徴とする耐摩耗性黄
銅合金。 ２ 重量割合でCu55〜70％、Al1.0〜6.0％、
Fe0.1〜4.0％、Ni0.5〜5.0％、Si0.1〜2.0％、
Zr0.1〜3.0％および残部はZnからなることを特徴
とする耐摩耗性黄銅合金。[Claims] 1. Cu55-70%, Al1.0-6.0% by weight,
A wear-resistant brass alloy characterized by comprising 0.1 to 4.0% Fe, 0.5 to 5.0% Ni, 0.1 to 3.0% Zr, and the balance being Zn. 2 Cu55-70%, Al1.0-6.0% by weight,
Fe0.1~4.0%, Ni0.5~5.0%, Si0.1~2.0%,
A wear-resistant brass alloy characterized by consisting of 0.1 to 3.0% Zr and the balance Zn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13616282A JPS5925939A (en) | 1982-08-04 | 1982-08-04 | Brass alloy having abrasion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13616282A JPS5925939A (en) | 1982-08-04 | 1982-08-04 | Brass alloy having abrasion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5925939A JPS5925939A (en) | 1984-02-10 |
| JPH0237418B2 true JPH0237418B2 (en) | 1990-08-24 |
Family
ID=15168763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13616282A Granted JPS5925939A (en) | 1982-08-04 | 1982-08-04 | Brass alloy having abrasion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925939A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8943025B2 (en) | 2003-06-27 | 2015-01-27 | Hitachi, Ltd. | Data replication among storage systems |
| US9058305B2 (en) | 2003-06-27 | 2015-06-16 | Hitachi, Ltd. | Remote copy method and remote copy system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200676A (en) * | 1986-02-27 | 1987-09-04 | 松原 譲 | Heating by microwave |
| KR910009871B1 (en) * | 1987-03-24 | 1991-12-03 | 미쯔비시마테리얼 가부시기가이샤 | Cu-alloy ring |
| KR910003882B1 (en) * | 1988-12-21 | 1991-06-15 | 풍산금속공업주식회사 | Cu-alloy for electric parts and the process for making |
| JPH0754742B2 (en) * | 1990-09-05 | 1995-06-07 | 奈良精機株式会社 | Electronic heating furnace using high temperature heating element |
-
1982
- 1982-08-04 JP JP13616282A patent/JPS5925939A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8943025B2 (en) | 2003-06-27 | 2015-01-27 | Hitachi, Ltd. | Data replication among storage systems |
| US9058305B2 (en) | 2003-06-27 | 2015-06-16 | Hitachi, Ltd. | Remote copy method and remote copy system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5925939A (en) | 1984-02-10 |
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